Use the Nutrition Facts label to the right to answer these questions: Is this product a good source of vitamin D and calcium? Explain.

Why is it necessary for healthy vegetarians to combine different plant foods or eat some eggs or milk products?a. to make sure they obtain sufficient caloriesb. to provide sufficient vitaminsc. to make sure they ingest all essential fatty acidsd. to provide all essential amino acids for protein synthesis

Why is it important that the small intestine has a much greater surface area than the stomach or esophagus?

A peanut butter and jelly sandwich contains carbohydrates, proteins, and fats. Describe what happens to the sandwich when you eat it. Discuss ingestion, digestion, absorption, and elimination.

Use the Nutrition Facts label to the right to answer these questions: Each gram of fat supplies 9 Calories. Based on the grams of saturated fat and its % Daily Value, calculate the upper limit of saturated fat (in grams and Calories) that an individual on a 2,000-Calorie/day diet should consume.

Use the Nutrition Facts label to the right to answer these questions: What percentage of the recommended daily value of fat is found in a 1-cup serving?

How might our craving for fatty foods, which is helping to fuel the obesity crisis, have evolved through natural selection?

Among vertebrates, the large intestine exists only in lineages that are primarily terrestrial (amphibians, reptiles, and mammals). Propose a hypothesis to explain this observation.

One common piece of dieting advice is to replace energy-dense food with nutrient-dense food. What does this mean?